Beispiel #1
0
 /// <summary>
 /// Adds a face to the edge's face list if the face index is in range.  (Some
 /// shapes, such as "plate / alloys", use $ff for their edge face value even
 /// though fewer than 16 faces are defined.)
 /// </summary>
 private void AddEdgeFace(VisWireframe vw, int eindex, int face, int faceCount)
 {
     if (face < faceCount)
     {
         vw.AddEdgeFace(eindex, face);
     }
 }
Beispiel #2
0
        private IVisualizationWireframe GenerateWireframe(ReadOnlyDictionary <string, object> parms)
        {
            int offset = Util.GetFromObjDict(parms, P_OFFSET, 0);

            if (offset < 0 || offset >= mFileData.Length)
            {
                // should be caught by editor
                mAppRef.ReportError("Invalid parameter");
                return(null);
            }

            VisWireframe vw         = new VisWireframe();
            const sbyte  END_MARKER = -128; // 0x80

            try {
                while (true)
                {
                    int vx = (sbyte)mFileData[offset++];
                    if (vx == END_MARKER)
                    {
                        break;
                    }
                    int vy = (sbyte)mFileData[offset++];
                    int vz = (sbyte)mFileData[offset++];

                    vw.AddVertex(vx, vy, vz);
                }

                while (true)
                {
                    int v0 = (sbyte)mFileData[offset++];
                    if (v0 == END_MARKER)
                    {
                        break;
                    }
                    int v1 = mFileData[offset++];
                    int f0 = mFileData[offset++];
                    int f1 = mFileData[offset++];

                    int edge = vw.AddEdge(v0, v1);
                    vw.AddEdgeFace(edge, f0);
                    if (f1 != f0)
                    {
                        vw.AddEdgeFace(edge, f1);
                    }
                }

                while (true)
                {
                    int nx = (sbyte)mFileData[offset++];
                    if (nx == END_MARKER)
                    {
                        break;
                    }
                    int ny = (sbyte)mFileData[offset++];
                    int nz = (sbyte)mFileData[offset++];

                    vw.AddFaceNormal(nx, ny, nz);
                }
            } catch (IndexOutOfRangeException) {
                // assume it was our file data access that caused the failure
                mAppRef.ReportError("Ran off end of file");
                return(null);
            }

            string msg;

            if (!vw.Validate(out msg))
            {
                mAppRef.ReportError("Data error: " + msg);
                return(null);
            }

            return(vw);
        }